12102512431 has 4 divisors (see below), whose sum is σ = 12150729864. Its totient is φ = 12054295000.

The previous prime is 12102512413. The next prime is 12102512473. The reversal of 12102512431 is 13421520121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12102512431 - 2⁵ = 12102512399 is a prime.

It is a super-2 number, since 2×12102512431² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12102512231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24108340 + ... + 24108841.

It is an arithmetic number, because the mean of its divisors is an integer number (3037682466).

Almost surely, 2^12102512431 is an apocalyptic number.

12102512431 is a deficient number, since it is larger than the sum of its proper divisors (48217433).

12102512431 is an equidigital number, since it uses as much as digits as its factorization.

12102512431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48217432.

The product of its (nonzero) digits is 480, while the sum is 22.

The spelling of 12102512431 in words is "twelve billion, one hundred two million, five hundred twelve thousand, four hundred thirty-one".